Enrollment
2,006
Louisiana · 2024-25 NCES data
High school (grades 9-12) · Mandeville, LA
Mandeville High School
Federal NCES profile for Mandeville High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 220165001285
👥 S:T ratio 24
📚 AP courses 50
🌟 Gifted program 70
🎓 Counselors 20
📋 Attendance 77
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mandeville High School earns 48/100 on the Resource Investment Index, with class sizes larger than 79% of Louisiana schools. It is also one of the largest schools in Louisiana.
- #1 of 3
- high schools in Mandeville · Resource Index
- 48
- Resource Index · Typical
- 19.1:1
- large classes for Louisiana
- 17.7%
- free-lunch eligible
Mandeville High School has class sizes larger than 79% of Louisiana schools. Computed live against every Louisiana school reporting to NCES.
By Resource Investment Index, Mandeville High School ranks #1 of 3 high schools in Mandeville, LA.
School address
District: St. Tammany Parish · Louisiana
NCES ID 220165001285 Verify on NCES CCD record →
Teachers (FTE)
105.0
Federal CCD staff survey
Students per teacher
19.1:1
vs 16.8:1 Louisiana avg
+14% vs state
Free-lunch eligible
17.7%
vs 62.5% Louisiana avg
-72% vs state
Student-teacher ratio in context
How Mandeville High School compares with Louisiana and U.S. medians
What stands out at Mandeville High School
Mandeville High School is a lower-poverty, large high school in Mandeville, Louisiana, enrolling 2,006 students.
Class loads run somewhat heavier than typical: 19.1:1 puts it in the larger third of Louisiana schools by student-teacher ratio.
Comparatively few students face economic hardship here, 17.7% free-meal eligibility runs 72% below the Louisiana average.
By headcount it is one of the larger campuses in Louisiana, bigger than 99% of state schools at 2,006 students.
Its Resource Investment Index sits near the middle of the pack among 1,330 scored Louisiana schools.
Its student body is predominantly White (80% of enrollment) (diversity index 34/100).
On the academic-pipeline side it reports 10 Advanced Placement courses.
Counselor access is stretched at roughly 401 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance holds up well here: only 9.4% of students were chronically absent, below the typical post-pandemic national figure.
The federal civil-rights collection also records 19 expulsions at this campus for 2021-22.
Among Mandeville's high schools, it stands alongside Fontainebleau High School (1,451 students): Mandeville High School is larger than that campus by headcount and runs heavier classes (19.1:1 vs 17.1:1).
St. Tammany Parish also operates Slidell High School (1,654 students) and Covington High School (1,600 students) alongside Mandeville High School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Mandeville High School compares
Mandeville High School on the metrics families compare, against Louisiana and U.S. means.
| Metric | This school | vs Louisiana | Louisiana avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 19.1:1 | ▲ 14% | 16.8:1 | 15.7:1 |
| Free-lunch eligible | 17.7% | ▼ 72% | 62.5% | 51.7% |
| Enrollment | 2,006 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
19.1:1
Leaner classes than 19% of US schools, heavier class loads than most.
2,006
Bigger than 98% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
17.7%
free-lunch eligible
- 72% below the Louisiana average of 62.5%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
19.1:1
students per teacher
- 14% above state mean
Top 79% in Louisiana - lower ratio than 21% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
9.4%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$14,024
per pupil, district-wide
- below Louisiana avg of $16,376
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors5.0 FTE
Per 401 students, the combined health-and-guidance staffing load for this school.
Discipline context
105
in-school suspensions + 133 out-of-school
Suspension rate: 5.2 per 100 students. Combined in-school and out-of-school rate: 11.9 per 100 students. Reported via the Civil Rights Data Collection. Includes 19 expulsions.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 80.2%
Hispanic or Latino 8.3%
African American 6.9%
Two or More 2.4%
Asian 1.7%
American Indian / Alaska Native 0.3%
Largest group: White at 80.2% of enrollment.
Student-body diversity index 34.4/100
Simpson diversity index - at 34.4, Mandeville High School is less mixed than the Louisiana school average of 43.9.
Programs
AP courses offered 10
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for St. Tammany Parish, which includes Mandeville High School.
$14,024
Per student
-14%
vs Louisiana
Avg $16,376
-15%
vs U.S.
Avg $16,593
Revenue mix
Local 51.9%
State 38.3%
Federal 9.8%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Mandeville High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Slidell High School | Similar size | Higher economic need | Similar S:T ratio |
| Covington High School | Similar size | Higher economic need | Similar S:T ratio |
| Northshore High School | Similar size | Higher economic need | Similar S:T ratio |
| Joseph B. Lancaster Elementary School | Smaller | Similar economic need | Higher S:T ratio |
| Fontainebleau High School | Smaller | Higher economic need | Lower S:T ratio |
Comparisons are relative to Mandeville High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,654
- Students per teacher
- 17.8:1
- Resource Index
- 42/100
- Enrollment
- 1,600
- Students per teacher
- 19.5:1
- Resource Index
- 35/100
- Enrollment
- 1,518
- Students per teacher
- 18.5:1
- Resource Index
- 49/100
- Enrollment
- 1,480
- Students per teacher
- 21.1:1
- Resource Index
- 45/100
- Enrollment
- 1,451
- Students per teacher
- 17.1:1
- Resource Index
- 45/100
Similar high schools in Mandeville
2 comparable high schools (grades 9-12) serving the same city.
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Louisiana, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~2,006 students)
Next steps
Verify locally before acting on Mandeville High School's federal record.
- Compare Mandeville High School against another school. Compare schools
- St. Tammany Parish's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Mandeville High School
How many students attend Mandeville High School?
Mandeville High School has 2,006 students enrolled. It is a high school in Mandeville, LA.
What is the student-teacher ratio at Mandeville High School?
The student-teacher ratio at Mandeville High School is 19.1:1, which is 14% higher than the Louisiana average of 16.8:1 and 22% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Mandeville High School?
17.7% of students at Mandeville High School are eligible for free lunch, compared to the Louisiana average of 62.5%.
What is the racial and ethnic makeup of Mandeville High School?
The largest demographic group at Mandeville High School is White at 80.2% of enrollment, in Mandeville, LA.
What is the Resource Investment Index for Mandeville High School?
Mandeville High School has a Resource Investment Index of 48/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Mandeville High School rank among high schools in Mandeville?
By Resource Investment Index, Mandeville High School ranks #1 of 3 high schools in Mandeville, LA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Mandeville on the city page.
Is Mandeville High School a good school?
Mandeville High School earns 48/100 on the Resource Investment Index, with class sizes larger than 79% of Louisiana schools. It is also one of the largest schools in Louisiana. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in St. Tammany Parish?
Besides Mandeville High School, St. Tammany Parish also operates Slidell High School (1,654 students), Covington High School (1,600 students), and Northshore High School (1,518 students). See the St. Tammany Parish district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.